February / March 2013
By: John Freisinger Volume 11 Number 1
Technology Readiness Levels (TRL) were originally developed by NASA to help describe the maturity of an invention or concept. The lowest level, TRL One, is an idea or observation. The top of the scale, TRL Nine, would describe something that is usable in the field, or in NASA’s mission, usable in space. The TRL system has been adopted by many research agencies such as the departments of energy and defense, the European Space Agency and the FAA.